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onion/js/components/ascribe_uploader/ascribe_upload_button/upload_button.js
2015-11-23 12:31:53 +01:00

147 lines
5.1 KiB
JavaScript

'use strict';
import React from 'react';
import { displayValidProgressFilesFilter } from '../react_s3_fine_uploader_utils';
import { getLangText } from '../../../utils/lang_utils';
import { truncateTextAtCharIndex } from '../../../utils/general_utils';
const { func, array, bool, shape, string } = React.PropTypes;
export default function UploadButton({ className = 'btn btn-default btn-sm' } = {}) {
return React.createClass({
displayName: 'UploadButton',
propTypes: {
onDrop: func.isRequired,
filesToUpload: array,
multiple: bool,
// For simplification purposes we're just going to use this prop as a
// label for the upload button
fileClassToUpload: shape({
singular: string,
plural: string
}),
allowedExtensions: string,
// provided by ReactS3FineUploader
handleCancelFile: func,
handleDeleteFile: func
},
handleDrop(event) {
event.preventDefault();
event.stopPropagation();
let files = event.target.files;
if(typeof this.props.onDrop === 'function' && files) {
this.props.onDrop(files);
}
},
getUploadingFiles() {
return this.props.filesToUpload.filter((file) => file.status === 'uploading');
},
getUploadedFile() {
return this.props.filesToUpload.filter((file) => file.status === 'upload successful')[0];
},
handleOnClick() {
const uploadingFiles = this.getUploadingFiles();
const uploadedFile = this.getUploadedFile();
if(uploadedFile) {
this.props.handleCancelFile(uploadedFile.id);
}
if(uploadingFiles.length === 0) {
// We only want the button to be clickable if there are no files currently uploading
// Firefox only recognizes the simulated mouse click if bubbles is set to true,
// but since Google Chrome propagates the event much further than needed, we
// need to stop propagation as soon as the event is created
var evt = new MouseEvent('click', {
view: window,
bubbles: true,
cancelable: true
});
evt.stopPropagation();
this.refs.fileinput.getDOMNode().dispatchEvent(evt);
}
},
onClickRemove() {
const uploadedFile = this.getUploadedFile();
this.props.handleDeleteFile(uploadedFile.id);
},
getButtonLabel() {
let { filesToUpload, fileClassToUpload } = this.props;
// filter invalid files that might have been deleted or canceled...
filesToUpload = filesToUpload.filter(displayValidProgressFilesFilter);
if(this.getUploadingFiles().length !== 0) {
return getLangText('Upload progress') + ': ' + Math.ceil(filesToUpload[0].progress) + '%';
} else {
return fileClassToUpload.singular;
}
},
getUploadedFileLabel() {
const uploadedFile = this.getUploadedFile();
if(uploadedFile) {
return (
<span>
<span className='ascribe-icon icon-ascribe-ok'/>
{' ' + truncateTextAtCharIndex(uploadedFile.name, 40) + ' '}
[<a onClick={this.onClickRemove}>{getLangText('remove')}</a>]
</span>
);
} else {
return (
<span>{getLangText('No file chosen')}</span>
);
}
},
render() {
let { multiple,
allowedExtensions } = this.props;
/*
* We do not want a button that submits here.
* As UploadButton could be used in forms that want to be submitted independent
* of clicking the selector.
* Therefore the wrapping component needs to be an `anchor` tag instead of a `button`
*/
return (
<div className="upload-button-wrapper">
<a
onClick={this.handleOnClick}
className={className}
disabled={this.getUploadingFiles().length !== 0}>
{this.getButtonLabel()}
<input
multiple={multiple}
ref="fileinput"
type="file"
style={{
display: 'none',
height: 0,
width: 0
}}
onChange={this.handleDrop}
accept={allowedExtensions}/>
</a>
{this.getUploadedFileLabel()}
</div>
);
}
});
}